27919342836 has 72 divisors (see below), whose sum is σ = 87988240704. Its totient is φ = 7251776640.

The previous prime is 27919342831. The next prime is 27919342861. The reversal of 27919342836 is 63824391972.

27919342836 is a `hidden beast` number, since 27 + 9 + 193 + 428 + 3 + 6 = 666.

It is a super-3 number, since 3×27919342836³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27919342831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5033185 + ... + 5038728.

Almost surely, 2^27919342836 is an apocalyptic number.

It is an amenable number.

27919342836 is an abundant number, since it is smaller than the sum of its proper divisors (60068897868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27919342836 is a wasteful number, since it uses less digits than its factorization.

27919342836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10071941 (or 10071936 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 27919342836 in words is "twenty-seven billion, nine hundred nineteen million, three hundred forty-two thousand, eight hundred thirty-six".